Home / 2,268.76-3,131.12-1,385.16

Finding the Fourth Proportional to 2,268.76, 3,131.12 and 1,385.16

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Solution

The fourth proportional to 2,268.76, 3,131.12 and 1,385.16 is: 1,911.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,268.76 : 3,131.12 = 1,385.16 : x
  2. Step 2: Convert to fraction form
    2,268.76/3,131.12 = 1,385.16/x
  3. Step 3: Cross multiply
    2,268.76x = 3,131.12 × 1,385.16
  4. Step 4: Simplify right side
    2,268.76x = 4,337,102.18
  5. Step 5: Solve for x
    x = 4,337,102.18/2,268.76
  6. Step 6: Final answer
    x = 1,911.66

Related Problems

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Half scale
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Double scale
Find fourth proportional to 2,269.76, 3,132.50 and 1,386.16
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.